Tim has two spinners, Spinner A and Spinner B. Each Spinner can only land on red or blue. The probability that Spinner A will land on red is 0.5. The probability that Spinner B will land on red is 0.6.
Tim spins Spinner A once and he spins Spinner B once. He does this a number of times. The number of times both spinners land on red is 84.
Work out an estimate for the number of times both Spinner land on blue?